As Courtney Lee crumbled to the ground in the fourth quarter and was unable to walk off under his own power, there was an immediate concern that this injury-riddled Boston Celtics squad was on the verge of losing yet another key player. Lee said the injury occurred during a dead ball situation in which he landed on the back foot of a Mavericks player. Fortunately for the Celtics, the injury appears to be just a left ankle sprain which at least gives the C's some hope that he might be able to play on Saturday at Memphis. The initial pain was pretty intense, but Lee said "now it's just throbbing. Hopefully it'll ... go down a little bit and hopefully I'll be able to go tomorrow (against Memphis)." This was not the first ankle sprain for Lee, which is why he wasn't that concerned about the injury when it happened. "Right away it's going to hurt the most," Lee said. "Once it calmed down, I was able to put pressure on it on the bench and I was able to walk off on the court." Paul Pierce was among the concerned Celtics, fearful that this was going to be yet another hurdle the C's would have to overcome courtesy of an injury. "We've been so many injuries this year," Pierce said.